I like the idea in a way. I dont think it should be on when the ball is in play, just too distracting, but for measurements flipping a switch and having the first down line appear on the field would be much better than walking the chains out.
Homer: [looking at watch] Two hours? Why'd they build this ghost town so far away?
Lisa: Because they discovered gold over there!
Homer: It's because they're stupid, that's why. That's why everybody does everything.